You could soon see fewer warning labels at the gas pumps. Missouri agricultural leaders want to peel the ethanol warning labels off of gas pumps in the Show Me State. The stickers describe that the gas has a 10% ethanol content. Officials say that the warning stickers are scaring people off from buying this type of gas. Ethanol is made from corn and blended with petroleum. Missouri state law requires labels on gas pumps that contain an ethanol mix.